GB1267298A - Improvements in or relating to processes for making bulked yarns by the fibrillation of thermoplstic films - Google Patents
Improvements in or relating to processes for making bulked yarns by the fibrillation of thermoplstic filmsInfo
- Publication number
- GB1267298A GB1267298A GB2070970A GB2070970A GB1267298A GB 1267298 A GB1267298 A GB 1267298A GB 2070970 A GB2070970 A GB 2070970A GB 2070970 A GB2070970 A GB 2070970A GB 1267298 A GB1267298 A GB 1267298A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ribbon
- chamber
- jet
- screen
- filaments
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/42—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments
- D01D5/423—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments by fibrillation of films or filaments
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
- D02G1/122—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes introducing the filaments in the stuffer box by means of a fluid jet
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Nonwoven Fabrics (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
1,267,298. Fibrillating films. HERCULES Inc. 29 April, 1970 [6 May, 1969], No. 20709/70. Heading B5B. A process for forming continuous filaments by fibrillating a film and simultaneously bulking the filaments involves feeding a ribbon of longitudinally oriented thermoplastic film having longitudinal parallel striations (Fig. 3) at a predetermined speed, surrounding the ribbon with a jet of fluid at a temperature sufficient to plasticize the ribbon without loss of orientation and directing the fluid jet, and thus the ribbon, into a bulking chamber having an open end opposed to the fluid jet and a cross-sectional area sufficient to permit limited lateral movement of the fluid jet. A screen is moved laterally across and in close proximity to the open end of the chamber at a substantially slower speed than the speed at which the ribbon is fed into the chamber and by thus confining the fluid jet to exhaust through the screen randomly deflects the jet and hence the ribbon laterally within the chamber at a rapid rate and thereby fibrillates the film. The resulting filaments are folded on to the screen and are randomly crimped as they are moved out of the chamber by being compressed against the surface of the screen. Suitable apparatus for the process of the invention is that of U.S. Patent 3,457,611, Figs. 1 (not shown), and 2 in which striated ribbon R is fed through yarn-tube 15 and urged into bulking chamber 14 by a fluid jet, which may be steam under pressure, supplied to capillary tube 13 by way of channels 12, chamber 29 and supply pipe 30, 31. The ribbon is substantially completely fibrillated in chamber 14 by random rapid lateral movement induced by deflection of the jet, and thus the ribbon, from areas of the slowly moving screen 3 which are densely covered with fibrillated filaments to areas which are less densely covered. The filaments then pass under the lower surface 35 of the jet unit 2 and are randomly crimped by the pressure of the jet unit on the screen 3. Suitable striated film for use in the invention is that of Fig. 3 which is fibrillated to form continuous filaments of specific cross-section, Fig. 4 (not shown). In an example a ribbon of polypropylene of the above cross-section is fibrillated and crimped using the above apparatus.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US82287069A | 1969-05-06 | 1969-05-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1267298A true GB1267298A (en) | 1972-03-15 |
Family
ID=25237192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2070970A Expired GB1267298A (en) | 1969-05-06 | 1970-04-29 | Improvements in or relating to processes for making bulked yarns by the fibrillation of thermoplstic films |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS4923249B1 (en) |
AU (1) | AU1418970A (en) |
BE (1) | BE750089A (en) |
CA (1) | CA936323A (en) |
DE (1) | DE2022323A1 (en) |
FR (1) | FR2044770A1 (en) |
GB (1) | GB1267298A (en) |
NL (1) | NL7006551A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6110588A (en) * | 1999-02-05 | 2000-08-29 | 3M Innovative Properties Company | Microfibers and method of making |
US6630231B2 (en) | 1999-02-05 | 2003-10-07 | 3M Innovative Properties Company | Composite articles reinforced with highly oriented microfibers |
US6680114B2 (en) | 2001-05-15 | 2004-01-20 | 3M Innovative Properties Company | Fibrous films and articles from microlayer substrates |
US6692823B2 (en) | 2001-12-19 | 2004-02-17 | 3M Innovative Properties Company | Microfibrillated articles comprising hydrophillic component |
US6753080B1 (en) | 2002-01-29 | 2004-06-22 | 3M Innovative Properties Company | Receptor medium having a microfibrillated surface |
US7192643B2 (en) | 2001-08-22 | 2007-03-20 | 3M Innovative Properties Company | Toughened cementitious composites |
-
1970
- 1970-02-27 CA CA076042A patent/CA936323A/en not_active Expired
- 1970-04-22 AU AU14189/70A patent/AU1418970A/en not_active Expired
- 1970-04-29 GB GB2070970A patent/GB1267298A/en not_active Expired
- 1970-05-04 NL NL7006551A patent/NL7006551A/xx unknown
- 1970-05-06 DE DE19702022323 patent/DE2022323A1/en active Pending
- 1970-05-06 BE BE750089D patent/BE750089A/en unknown
- 1970-05-06 FR FR7016472A patent/FR2044770A1/fr not_active Withdrawn
- 1970-05-06 JP JP3858270A patent/JPS4923249B1/ja active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6110588A (en) * | 1999-02-05 | 2000-08-29 | 3M Innovative Properties Company | Microfibers and method of making |
US6432532B2 (en) | 1999-02-05 | 2002-08-13 | 3M Innovative Properties Company | Microfibers and method of making |
US6432347B1 (en) | 1999-02-05 | 2002-08-13 | 3M Innovative Properties Company | Process of making a microfibrillated article |
US6630231B2 (en) | 1999-02-05 | 2003-10-07 | 3M Innovative Properties Company | Composite articles reinforced with highly oriented microfibers |
US7014803B2 (en) | 1999-02-05 | 2006-03-21 | 3M Innovative Properties Company | Composite articles reinforced with highly oriented microfibers |
US6680114B2 (en) | 2001-05-15 | 2004-01-20 | 3M Innovative Properties Company | Fibrous films and articles from microlayer substrates |
US7192643B2 (en) | 2001-08-22 | 2007-03-20 | 3M Innovative Properties Company | Toughened cementitious composites |
US6692823B2 (en) | 2001-12-19 | 2004-02-17 | 3M Innovative Properties Company | Microfibrillated articles comprising hydrophillic component |
US6753080B1 (en) | 2002-01-29 | 2004-06-22 | 3M Innovative Properties Company | Receptor medium having a microfibrillated surface |
Also Published As
Publication number | Publication date |
---|---|
FR2044770A1 (en) | 1971-02-26 |
NL7006551A (en) | 1970-11-10 |
CA936323A (en) | 1973-11-06 |
BE750089A (en) | 1970-11-06 |
JPS4923249B1 (en) | 1974-06-14 |
DE2022323A1 (en) | 1970-11-19 |
AU1418970A (en) | 1971-10-28 |
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